A NEW APPROACH TO DIHYDROBENZOFURANS BY INTRAMOLECULAR TRAPPING OF BENZYNES BY HYDROXYL FUNCTIONS

被引：18

作者：

BIRKETT, MA

KNIGHT, DW

MITCHELL, MB

机构：

[1] DEPT CHEM,UNIV PK,NOTTINGHAM NG7 2RD,ENGLAND

[2] SB PHARMACEUT,TONBRIDGE TN11 9AN,KENT,ENGLAND

来源：

TETRAHEDRON LETTERS | 1993年 / 34卷 / 43期

关键词：

D O I：

10.1016/S0040-4039(00)91836-7

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The adducts 3, derived from condensations of the 1-aminobenzotriazole dianion 2 and aldehydes or ketones, are converted into the corresponding benzynes upon exposure to either N-bromosuccinimide or lead(IV) acetate; intramolecular trapping by the hydroxyl group then leads to the dihydrobenzofurans 4, 7, 8 and 9 in 38 75% isolated yields.

引用

页码：6939 / 6940

页数：2

共 7 条

[1] SYNTHESIS OF POLYCYCLICS VIA ARYNE ARYLATION REACTIONS [J].